Release of phosphorus from waste-activated sludge

被引:24
作者
Fine, P [1 ]
Mingelgrin, U [1 ]
机构
[1] AGR RES ORG,VOLCANI CTR,DEPT PHYS & ENVIRONM CHEM,INST SOILS & WATER,IL-50250 BET DAGAN,ISRAEL
关键词
D O I
10.2136/sssaj1996.03615995006000020024x
中图分类号
S15 [土壤学];
学科分类号
0903 ; 090301 ;
摘要
The dynamics of Prelease from a primarily domestic waste-activated sludge was investigated, More than 70% of the P in the sludge was in mineral form, The inorganic rather than the organic fraction controlled the release of P. Phosphorus release from soil-sludge mixtures into soil solution during 100 d of incubation was measured with and without a corn (Zea mays L.) crop, in both a calcareous and a noncalcareous sandy soil. The kinetics of inorganic P dissolution from the sludge was also measured in aqueous suspensions during 9 d of incubation. Sludge concentrations were 10 to 100 g kg(-1) in the soil-sludge mixtures and 1 and 10 g L(-1) in the P-dissolution experiments, The dissolution experiments revealed that up to 40% of the total sludge P dissolved, under the experimental conditions. A continuum of solubilities was displayed by the solid inorganic P components present in the sludge, ranging from that of hydroxyapatite to that of dicalcium phosphate dihydrate. Transformations of N compounds in the sludge-containing systems had strong effects on the dynamics of P dissolution, mainly through the influence of the ammonification and nitrification processes on the pH and the ionic strength and composition of the aqueous solution.
引用
收藏
页码:505 / 511
页数:7
相关论文
共 27 条
[1]  
AVNIMELECH Y, 1980, NATURE, V290, P255
[2]  
BANIN A, 1990, MIMIMIZING SOIL CONT
[3]  
BLACK CA, 1985, AGRON MONOGR ASA, V9
[4]   SULFOLIPID AND PHOSPHOLIPID IN SOILS AND SEWAGE SLUDGES IN IOWA [J].
CHAE, YM ;
TABATABAI, MA .
SOIL SCIENCE SOCIETY OF AMERICA JOURNAL, 1981, 45 (01) :20-25
[5]  
COSGROVE DJ, 1972, J ENVIRON QUAL, V2, P483
[6]  
DEHAAN S, 1981, PHOSPHORUS SEWAGE SL
[7]   INCUBATION STUDIES OF THE FATE OF ORGANIC NITROGEN IN SOILS AMENDED WITH ACTIVATED-SLUDGE [J].
FINE, P ;
MINGELGRIN, U ;
FEIGIN, A .
SOIL SCIENCE SOCIETY OF AMERICA JOURNAL, 1989, 53 (02) :444-450
[8]  
FINE PU, 1984, P 2 INT S PEAT AGR H, P171
[9]  
Focht D.D., 1977, ADV MICROB ECOL, V1, P135, DOI DOI 10.1007/978-1-4615-8219-9_4
[10]   HYDROGEN ION BUFFERS FOR BIOLOGICAL RESEARCH [J].
GOOD, NE ;
WINGET, GD ;
WINTER, W ;
CONNOLLY, TN ;
IZAWA, S ;
SINGH, RMM .
BIOCHEMISTRY, 1966, 5 (02) :467-&